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Re: Which partitioning schemes should be supported by GRUB?
From: |
Colin Watson |
Subject: |
Re: Which partitioning schemes should be supported by GRUB? |
Date: |
Mon, 14 Jun 2010 14:25:39 +0100 |
User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Mon, Jun 14, 2010 at 08:07:35AM -0500, address@hidden wrote:
> Colin Watson wrote:
> > I can think of an alternative. We do still need grub_install_dos_part
> > and grub_install_bsd_part for the multiboot trampoline, which is in
> > assembly, so it's difficult to abandon them altogether. However,
> > there's no reason we need to use them in make_install_device. How about
> > we invent a way to encode most of the information in string form in
> > grub_prefix, while leaving a placeholder for make_install_device to fill
> > in the disk? There are 64 bytes available for grub_prefix, which should
> > be plenty. For example, how about the following (with \0 standing for
> > ASCII NUL):
> >
> > (\0,msdos1,bsd1)/boot/grub
> >
> > It's then just a matter of spotting the "(\0," sequence and replacing
> > the \0 with the drive name. I think this can probably be done using
> > less code than the first option above, and all told it feels a bit less
> > hacky to me.
>
> Instead of doing string replacement, why not just define a
> disk-relative partition format?
Simple string replacement would be much easier to implement, and
probably smaller. Plus, we don't need disk-relative device naming
elsewhere, and I think it would require putting platform-specific code
(otherwise how do you know which disk to be relative to?) in places that
are otherwise pretty platform-independent.
> Also, the '\0' seems unnecessary. Is having "(," meaningful in some
> way already?
Good point. This would be sufficient.
--
Colin Watson address@hidden
- Which partitioning schemes should be supported by GRUB?, Grégoire Sutre, 2010/06/06
- Re: Which partitioning schemes should be supported by GRUB?, Vladimir 'φ-coder/phcoder' Serbinenko, 2010/06/07
- Re: Which partitioning schemes should be supported by GRUB?, Grégoire Sutre, 2010/06/09
- Re: Which partitioning schemes should be supported by GRUB?, Grégoire Sutre, 2010/06/12
- Re: Which partitioning schemes should be supported by GRUB?, Vladimir 'φ-coder/phcoder' Serbinenko, 2010/06/12
- Re: Which partitioning schemes should be supported by GRUB?, Grégoire Sutre, 2010/06/13
- Re: Which partitioning schemes should be supported by GRUB?, Colin Watson, 2010/06/14
- Re: Which partitioning schemes should be supported by GRUB?, address@hidden, 2010/06/14
- Re: Which partitioning schemes should be supported by GRUB?,
Colin Watson <=
- Re: Which partitioning schemes should be supported by GRUB?, Colin Watson, 2010/06/14
- Re: Which partitioning schemes should be supported by GRUB?, Vladimir 'φ-coder/phcoder' Serbinenko, 2010/06/14
- Re: Which partitioning schemes should be supported by GRUB?, Colin Watson, 2010/06/14
- Re: Which partitioning schemes should be supported by GRUB?, Seth Goldberg, 2010/06/14
- Re: Which partitioning schemes should be supported by GRUB?, Colin Watson, 2010/06/14
- Re: Which partitioning schemes should be supported by GRUB?, Grégoire Sutre, 2010/06/14
- Re: Which partitioning schemes should be supported by GRUB?, Colin Watson, 2010/06/15
- Re: Which partitioning schemes should be supported by GRUB?, Grégoire Sutre, 2010/06/15
- Re: Which partitioning schemes should be supported by GRUB?, Colin Watson, 2010/06/16
- Re: Which partitioning schemes should be supported by GRUB?, Grégoire Sutre, 2010/06/16